package com.sakura.takeaway.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.sakura.takeaway.common.R;
import com.sakura.takeaway.entity.User;
import com.sakura.takeaway.service.UserService;
import com.sakura.takeaway.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @author Sakura
 * @Date 2022-07-13 10:30
 */
@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送手机短信验证码
     * @param user
     * @param session
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){

        //获取手机号
        String phone = user.getPhone();

        //判断手机号不为空
        if(StringUtils.isNotEmpty(phone)){

            //生成随机验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code:{}",code);

            //1.发送验证码到邮箱
//            SendEmailUtils.sendAuthCodeEmail(phone,code);

            //2.调用阿里云提供的短信服务API发送验证码
//            SMSUtils.sendMessage("阿里云短信测试",
//                    "SMS_154950909","17387260165",code);

            //需要将生成的验证码保存到session中
            //session.setAttribute(phone,code);

            //将生成的验证码保存到redis中
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            return R.success("手机短信验证码发送成功！");
        }
        return R.error("短信发送失败");
    }

    /**
     * 移动端客户登录
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map,HttpSession session){
        log.info(map.toString());

        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        //从session中获取保存的验证码
        //Object codeInSession = session.getAttribute(phone);

        //从redis中获取保存的验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);

        //进行验证码对比（页面提交的验证码和session中保存的验证码对比）
        if(codeInSession!=null && codeInSession.equals(code)){
            //对比成功，则登录成功
            LambdaQueryWrapper<User> queryWrapper =new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);

            User user = userService.getOne(queryWrapper);
            //判断当前手机号是否为新用户，如果是自动完成注册
            if(user == null){
                user=new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());

            //用户登录成功，删除redis中缓存的验证码
            redisTemplate.delete(phone);

            return R.success(user);
        }

        return R.error("登录失败");
    }

    /**
     * 用户退出：清理session中保存的当前登录的用户id
     * @param request
     * @return
     */
    @PostMapping("/loginout")
    public R<String> loginout(HttpServletRequest request){
        //清理session中保存的当前登录的用户id
        request.getSession().removeAttribute("user");
        return R.success("退出成功");
    }

}
